/* Copyright (c) 2010 Fabian Kulman
* 
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
* 
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
* 
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/

#ifndef CHAIN
#define CHAIN

#include <vector>
#include "unit.h"


class Chain{
	
public:
	cpSpace* space;
	std::vector<cpFloat>* vInput;
	std::vector<Unit*> vUnit; 
	std::vector<Unit*>::reverse_iterator rit;
	int nrUnits;
	
	Chain( cpSpace* space, std::vector<cpFloat>* input );
	~Chain();

	Unit* pointInChain( cpVect p );

	// return: xMin, xMax, yMin, yMax
	//std::vector<cpFloat>* boundingBox();
	//cpVect calculateCenter();

	//void snapRotation( Unit* u );

	void startDragRotation( Unit* u );
	void stopDragRotation( Unit* u );

	void stopChain();

	void printChainState();
	void drawChain( GLfloat guiScale );

	static Chain* Chain::SpaceAddChain( cpSpace* space, std::vector<cpFloat>* input ){
		Chain* c = new Chain( space, input );
		return c;
	}
	
};



#endif